IC Electric Druid STOMPLFO
The chip provides 8 waveforms including two interesting random waves, and can generate frequencies from 0.05Hz to 25Hz. The LFO frequency, waveform selection, LFO depth, and output offset voltage are all voltage-controlled using 0-5V. Here is a link to the datasheet, which includes example circuit diagrams, example waveforms, and the chip pinout diagram.
Notes from The Electric Druid on the newest version of the TAPLFO:
The STOMPLFO tap tempo chip is a simplified 8-pin version of our popular TAPLFO chip. It is intended to replace the typical (and boring!) dual op-amp Schmitt trigger/integrator LFO that turns up in a million stompbox and guitar pedal designs.